Open AccessPrecise positions of Phoebe determined with CCD image‐overlapping calibration
Author(s) -
Peng Q. Y.,
Zhang Q. F.
Publication year - 2006
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1111/j.1365-2966.2005.09853.x
Subject(s) - physics , ephemeris , declination , right ascension , astrometry , calibration , saturn , observatory , telescope , astrophysics , standard deviation , satellite , astronomy , geodesy , stars , quantum mechanics , statistics , mathematics , planet , geography
This paper presents 210 positions of Phoebe, the ninth satellite of Saturn, observed with the 1‐m telescope at the Yunnan Observatory during the years 2003–2005, using a CCD image‐overlapping calibration method proposed recently by Peng et al. After the observed positions of Phoebe are compared with its theoretical positions computed by the new JPL ephemerides DE405 and SAT199, the mean residuals (observed minus computed) are 0.21 and −0.05 arcsec in right ascension and declination, respectively, with a standard deviation of 0.06 arcsec.